There’s some more information about the 8.9-inch Dell Inspiron 910, and this time it’s coming straight from Dell’s support pages.
As we had already guessed, while the Function (Fn) keys were physically removed, they still exist as a subset of the normal keys (although not on the numeric keys across the top, but instead on the middle row of letters (A, S, D, etc.). There’s also an explanation about the power LED light (sleep, hibernate, etc.). The USB-powered external drive is mentioned, and I’m going with Liliputing on it being optional.
– Dell support page – keyboard
– Dell support page – external USB Drive
– Dell support page – status LEDs